Base | Representation |
---|---|
bin | 1111100111100… |
… | …01101010000101 |
3 | 100010112011101201 |
4 | 13303301222011 |
5 | 232014411003 |
6 | 21000022501 |
7 | 3150410560 |
oct | 763615205 |
9 | 303464351 |
10 | 131013253 |
11 | 67a54218 |
12 | 37a61a31 |
13 | 211b1a47 |
14 | 135854d7 |
15 | b77db1d |
hex | 7cf1a85 |
131013253 has 4 divisors (see below), whose sum is σ = 149729440. Its totient is φ = 112297068.
The previous prime is 131013241. The next prime is 131013287. The reversal of 131013253 is 352310131.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131013253 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 131013253.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131013293) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9358083 + ... + 9358096.
It is an arithmetic number, because the mean of its divisors is an integer number (37432360).
Almost surely, 2131013253 is an apocalyptic number.
It is an amenable number.
131013253 is a deficient number, since it is larger than the sum of its proper divisors (18716187).
131013253 is an equidigital number, since it uses as much as digits as its factorization.
131013253 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18716186.
The product of its (nonzero) digits is 270, while the sum is 19.
The square root of 131013253 is about 11446.1020876104. The cubic root of 131013253 is about 507.8924341351.
Adding to 131013253 its reverse (352310131), we get a palindrome (483323384).
The spelling of 131013253 in words is "one hundred thirty-one million, thirteen thousand, two hundred fifty-three".
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